Carbureter.



1 onion.

GEORG E I. BATTELLE, OF SAN FRANCISCO, CALIFORNIA. I

j CARBURETER.

To all whom it may concern:

Be it known that I, GEORGE I. BATTELLE, a

citizen of the United States, residing at the once set is constant for all speeds, but which city and county of San Francisco and State of California, have invented certain new and useful Improvements in Carbureters, of which the following is aspecification.

' My invention relatesto carbureters. The object I have invi'ew is to supply an exact ratio of fuel to ingoing air, which ratio when may "be variedat will to suit any combina'.

1o. novel carbureter which I shall now fully dethe accompanying shaft 13, through bevel mounted within the shell 1 on ball bearings mined area.

tion of speed, temperature 'or barometric conditions. e r

To this endmy invention consists in the scribe by reference to drawings, in which g I Figure 1 is a vertical sectional view of both the cam shaft driven feed and the throttle-controlled feed, showing their connection with the heating unit and theintake manifold.- .v

Fig, 2 is a facevlew of the camshaft driven feed disk.

3. Within a housing on the exterior of the shell, formed by a flange 4: and arr associated cover 5-, is mounted for rotation the feed disk 6 which consists of a plate, provided with an annular seriesof measuring vanes 7, spaced to predetermined distance The feed disk 6 is carried by a shaft 8 upon the inner end of which, within the shell 1, is a friction gear 9.

Slidably mounted on the shaft 3 is a friction gear 10, engaging the friction gear 9, and adapted to be adjusted radially relatively thereto, forincrease and decrease of speed transmitted, by means of a fork 11, on the end: of arod 12 which is to extend to the dash and to be associated with a dial, not shown.

' The shaft 3 is driven from the engine cam gears 14 and 1.5,

16, as indicated.

17 is the fuel inlet pipe which passes Specification of Letters Patent.

also carries 1 a gear 32.

with a, pinion 33 'on a short shaft 3 1, which shaft carries the feed disk 22. Said shaft 34 and of predeten' In'order to vary the ratio of fuel to air cates with the feed disk 6.

Patented Oct. 29, 1918. Application filed October 5, 1917. Serial No. 194,972.

18 is the outlet pipe from the disk 6. 19 I is the shell of the throttle-controlled feed. In a housing 20 of this shell, behind a cover 21 1s mounted the feed disk 22 having spaced and suitably proportioned measuring vanes 23. With the feed disk 22 communicates the fuel inlet pipe 24,.and said disk communicates with a reservoir 25 from which an outlet pipe 26 issues. 7

27 is the throttle stem, slidable in the shell 19 and held to place by a spring 28, Fig. at. The throttle stem has a rack 29 which engages a pinion 30, on a short shaft 31 which This gear meshes also carries a ratchet 35, withwhich a spring controlled pawl 36 engages, Fig. 1. In the throttle stem is a slip-joint 37. v

38 is the intake conduit. In this is located a heating or vaporizing unit comprising a shell 39 with nozzle 40, and an inclosed, spaced, electric heating member 41, with con- Fig. 3 is a face view of the throttle controlledfeed disk and the underlying "resernection {12 to the battery, not shown. Into the shell 39 of the heating or vaporizing. unit lead the outlet pipes 18 and 26 from the camshaft driven feed and the throttle controlled feed, respectively. 'At 43 is indicated the rack and quadrantconnection by which the throttle stem controls the air regulating valve.

It will now be seen from the foregoing that the stream of fuel oil is separated into two portions and both measured by the vanes of the feed disks. One portion is measured by the cam shaft driven feed'disk 6 to supply the constant demands ofany n'esecured speed, and the other portion is measured out by the feed disk 22 actuated through the train of gears operated by the rack 29 on the throttle stem 27 as the increment needed over and above theconstant supply, to raise an existing speed to a desired speed. T he two streams are then united and forced by l the cam-shaft driven feed disk, through the heating unit 39 in the intake conduit 38. This unit vaporize-S the fuel before introducing it into the stream of inrushing air.

I the friction drive 9,10 is introduced between the .cam shaft 13 and the feed disk 6 driven by it, whichvaries the ratio of diameters of driving anddriven gears and hence varies the ratio of fuel to air.

By means ofthe camshaft-driven feed any presecured engine. speed has constantly measured out for its need the amount of fuel which has been predetermined ascorrect to enrich the volume of air displaced by the pistons. The portion of the fuel supplied to accelerate any existing speed to a desired speed is measured by the properly positioned anes 23 of the feed disk 22 which is operated by the throttle stem 27 which stem opens the inlet air valve for the increased speed. The feed disk 22 and the air inlet valve will, therefore, move ,in unison when the latter is being opened, but when it is being closed, a counter revolution of the feed disk 22 is prevented by the action of the pawlilb and ratchet and the slip joint 37 infthe throttle stenn In this closing movement the throttle stem, yielding against the spring 28 as permitted by the slip joint $37,

slips its rack 29 over the teeth of the pinion 30, the latter being held by the pawl 36.

I claim 1. A carbureter comprising a measuring force feed device communicating with a fuel supply pipe and with an intake conduit; means for driving said force feed device from the engine cam-shaft; a second measuring force feed device communicating with the fuel supply pipe and with the fuel a train of stream from the first feed device, entering the intake conduit; a throttlestem for controlling the admission of air to the intake;

first feed device and entering the intake conduit; a throttle stem for controlling the admission of air to the intake; and means for operating said second feed device from the throttle stem, simultaneously withthe operation of the air control. consisting of a rack on the stem, a pressure spring for the stem,

ratchet, and a slip joint in the stem.

In testimony \vliereofl have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE I. BATTELLE.

Witnesses \VM. F. BOOTH, D. B. RICHARDS.

gears, a retaining pawl, and' 

